30666668 has 6 divisors (see below), whose sum is σ = 53666676. Its totient is φ = 15333332.

The previous prime is 30666667. The next prime is 30666677. The reversal of 30666668 is 86666603.

It is not an unprimeable number, because it can be changed into a prime (30666667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3833330 + ... + 3833337.

It is an arithmetic number, because the mean of its divisors is an integer number (8944446).

Almost surely, 2^30666668 is an apocalyptic number.

It is an amenable number.

30666668 is a deficient number, since it is larger than the sum of its proper divisors (23000008).

30666668 is a wasteful number, since it uses less digits than its factorization.

30666668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7666671 (or 7666669 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 30666668 is about 5537.7493623312. The cubic root of 30666668 is about 313.0080669698.

The spelling of 30666668 in words is "thirty million, six hundred sixty-six thousand, six hundred sixty-eight".